CHASSIS SPECIFICATIONS
2-5
EAM20129
CHASSIS SPECIFICATIONS
Chassis
Frame type
Semi double cradle
Caster
angle
26.9
Trail
120 mm (4.7 in)
Front wheel
Wheel type
Spoke wheel
Rim
size
21x1.6
Radial wheel runout limit
2.0 mm (0.08 in)
Lateral wheel runout limit
2.0 mm (0.08 in)
Wheel axle bending limit
0.50 mm (0.02 in)
Rear wheel
Wheel type
Spoke wheel
Rim
size
19x2.15
Radial wheel runout limit
2.0 mm (0.08 in)
Lateral wheel runout limit
2.0 mm (0.08 in)
Wheel axle bending limit
0.50 mm (0.02 in)
Front tire
Type
With
tube
Size
80/100-21
51M
Manufacturer/model
DUNLOP/MX33
Rear tire
Type
With
tube
Size
120/80-19
63M
Manufacturer/model
DUNLOP/MX33
Tire air pressure (measured on cold tires)
Front
100 kPa (1.00 kgf/cm², 15 psi)
Rear
100 kPa (1.00 kgf/cm², 15 psi)
Front brake
Type
Hydraulic single disc brake
Brake disc thickness limit
2.5 mm (0.10 in)
Brake disc runout limit (as measured on
wheel)
0.15 mm (0.0059 in)
Brake pad lining thickness limit
1.0 mm (0.04 in)
Master cylinder inside diameter
9.52 mm (0.37 in)
Caliper cylinder inside diameter (Left)
25.40 mm, 25.40 mm (1.00 in, 1.00 in)
Specified brake fluid
DOT 4
Rear brake
Type
Hydraulic single disc brake
Brake pedal position
5.0 mm (0.20 in)
Brake disc thickness limit
3.5 mm (0.14 in)
Brake disc runout limit (as measured on
wheel)
0.15 mm (0.0059 in)
Brake pad lining thickness limit
1.0 mm (0.04 in)
Master cylinder inside diameter
11.0 mm (0.43 in)
Caliper cylinder inside diameter
25.40 mm (1.00 in)
Specified brake fluid
DOT 4
Summary of Contents for YZ450F 2021
Page 6: ...EAM20162 YAMAHA MOTOR CORPORATION U S A YZ MOTORCYCLE LIMITED WARRANTY ...
Page 10: ......
Page 44: ...MOTORCYCLE CARE AND STORAGE 1 32 ...
Page 61: ...TIGHTENING TORQUES 2 16 ...
Page 62: ...CABLE ROUTING DIAGRAM 2 17 EAM20152 CABLE ROUTING DIAGRAM Frame and engine left side view ...
Page 64: ...CABLE ROUTING DIAGRAM 2 19 Frame and engine right side view ...
Page 66: ...CABLE ROUTING DIAGRAM 2 21 Handlebar front view ...
Page 68: ...CABLE ROUTING DIAGRAM 2 23 Frame and engine top view ...
Page 70: ...CABLE ROUTING DIAGRAM 2 25 Frame and battery top view ...
Page 72: ...CABLE ROUTING DIAGRAM 2 27 Rear brake right side view ...
Page 74: ...CABLE ROUTING DIAGRAM 2 29 ...
Page 112: ...ELECTRICAL SYSTEM 3 36 ...
Page 148: ...REAR BRAKE 4 34 system Refer to BLEEDING THE HYDRAULIC BRAKE SYSTEM on page 3 25 ...
Page 189: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 3 1 Connecting rod 2 Oil nozzle 3 Crankshaft ...
Page 191: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 5 5 1 Oil filter element 2 Oil pump 3 Oil strainer ...
Page 262: ...TRANSMISSION 5 76 ...
Page 272: ...WATER PUMP 6 9 ...
Page 282: ...THROTTLE BODY 7 9 ...
Page 289: ...IGNITION SYSTEM 8 6 ...
Page 290: ...ELECTRIC STARTING SYSTEM 8 7 EAM20143 ELECTRIC STARTING SYSTEM EAM30279 CIRCUIT DIAGRAM ...
Page 294: ...CHARGING SYSTEM 8 11 EAM20144 CHARGING SYSTEM EAM30282 CIRCUIT DIAGRAM ...
Page 297: ...CHARGING SYSTEM 8 14 ...
Page 298: ...FUEL INJECTION SYSTEM 8 15 EAM20145 FUEL INJECTION SYSTEM EAM30284 CIRCUIT DIAGRAM ...
Page 321: ...FUEL INJECTION SYSTEM 8 38 ...
Page 322: ...FUEL PUMP SYSTEM 8 39 EAM20146 FUEL PUMP SYSTEM EAM30287 CIRCUIT DIAGRAM ...
Page 352: ...SELF DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE 9 15 ...
Page 362: ...CHASSIS 10 9 ...
Page 364: ......
Page 366: ......
Page 368: ...YZ450FM 2021 WIRING DIAGRAM B2W 2819U 11_W D indd 2 2020 02 05 10 21 39 ...